In the final of the Inter High prelims, Kawako faces Yokonan, but Kayano has a surprise in store for Goro and the gang.
He's Hibino Yoshihiko's 
twin brother, Katsuhiko.
Der Zwillingsbruder von
Hibino Yoshihiko, Katsuhiko.
Es Katsuhiko,
el gemelo de Yoshihiko Hibino.
Es Katsuhiko,
el gemelo de Yoshihiko Hibino.
C’est Katsuhiko Hibino,
le jumeau de Yoshihiko.
É o irmão gêmeo do Hibino Yoshihiko,
o Katsuhiko.
Брат-близнец Ёсихико Хибино — Кацухико.